<script lang="ts" setup>
import { uploadAPI } from '@/apis/common';
import { createRentAPI, delEnterpriseDetailAPI, deleteRentAPI, getEnterpriseListAPI, getRentBuildListAPI, getRentListAPI, outRentAPI } from '@/apis/enterprise';
import type { Datum, Enterprise, EnterpriseListParams, RentBuilding,RentParams } from '@/types/enterprise';
import type { FormInstance, FormRules, UploadRawFile, UploadRequestOptions, UploadUserFile } from 'element-plus';
import { ElMessage, ElMessageBox } from 'element-plus';
import {  ref, watch } from 'vue';


// 前端自定义的类型，用于展示嵌套表格
interface EnterpriseWithRent extends Enterprise{
  //合同列表
  rentList:Datum[]
}


// 1. 获取企业列表
const  params = ref<EnterpriseListParams>({
  page: 1,
  pageSize: 10,
  name: ''// 企业名称
})

const list  = ref<EnterpriseWithRent[]>( [])
const total  = ref(0)
const getList = async () => {
  const res = await getEnterpriseListAPI(params.value)
  console.log('res',res);
  //map映射数据用于前端展示
  list.value = res.data.rows.map(item=>({
    ...item,
    rentList:[]// 合同列表默认值，用于嵌套表格渲染
  }))

  total.value = res.data.total 
}

getList()

// 点击查询按钮，搜索企业
const onSearch = () => {
  // 搜索时，由于条件变了，返回的数据不一样，所以需要重置页码
  params.value.page = 1
  // 重新请求数据
  getList()
}

//删除
const delEnter = async (id:string)=>{
  ElMessageBox.confirm('确定删除该企业吗？', '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning',
  }).then(async () => {
    await delEnterpriseDetailAPI(id)
    ElMessage.success('删除成功')
    getList()
  }).catch(() => { })
}

//---------------------添加合同--------------------
const rentDialogVisible = ref(false)  //是否显示添加合同弹窗

// 表单数据默认值
const initRentForm = () => {
  // 每次调用，都返回一个新对象
  return {
    buildingId: undefined, // 租赁楼宇id
    startTime: '', // 开始日期（不能小于今日日期）
    endTime: '', // 租赁结束日期
    contractUrl: '', // 合同附件url
    contractId: undefined, // 合同附件id
    type: 0, // 操作类型，添加合同0，续签合同1
    enterpriseId: undefined // 企业id
  }
}


const rentForm = ref<RentParams>(initRentForm())
// const rentForm = ref<RentParams>({
//   buildingId: undefined, // 租赁楼宇id
//   startTime: '', // 开始日期（不能小于今日日期）
//   endTime: '', // 租赁结束日期
//   contractUrl: '', // 合同附件url
//   contractId: undefined, // 合同附件id
//   type: 0, // 操作类型，添加合同0，续签合同1
//   enterpriseId: undefined // 企业id 
// })







// 添加合同 - 表单校验
const rentRules = ref<FormRules<RentParams>>({
  buildingId: [
    { required: true, message: '请选择楼宇', trigger: 'change' }
  ],
  endTime: [
    { required: true, message: '请选择租赁日期', trigger: 'blur' }
  ],
  contractId: [
    { required: true, message: '请上传合同文件' }
  ]
}) 

//可租赁的楼宇列表
const buildList = ref<RentBuilding[]>([]) 


// 添加合同-打开弹窗
const addRent = async (id:number) =>{
  rentDialogVisible.value = true

  // 获取可租赁楼宇列表
  // 获取可租赁楼宇列表
  const res = await getRentBuildListAPI()
  // console.log('res', res);
  buildList.value = res.data

  //把企业id存入表单对象
  rentForm.value.enterpriseId= id

}


// 点击添加合同弹窗的确认按钮
const addRentConfirm = async () => {
  try {
    // 1. 校验表单  
    await addFormRef.value?.validate()
    // 2. 提交表单数据给后端
    await createRentAPI(rentForm.value)
    // 3. 轻提示
    ElMessage.success('添加成功')
    // 4. 关闭弹窗
    closeRent()
  } catch {

  }
}




const fileList = ref<UploadUserFile[]>([])
//添加合同关闭弹窗
const closeRent = () =>{
  //关闭弹窗
  rentDialogVisible.value = false

    // 重置表单校验(前端)
  addFormRef.value?.resetFields()
  //// 重置日期选择器数据(前端)
  timeArr.value = []

//重置文件列表（前端）
fileList.value = []


   // 重置提交给后端的表单数据(后端)
  // rentForm.value = {
  //   buildingId: undefined, // 租赁楼宇id
  //   startTime: '', // 开始日期（不能小于今日日期）
  //   endTime: '', // 租赁结束日期
  //   contractUrl: '', // 合同附件url
  //   contractId: undefined, // 合同附件id
  //   type: 0, // 操作类型，添加合同0，续签合同1
  //   enterpriseId: undefined // 企业id
  // }
  rentForm.value = initRentForm()
}




//时间选择器
const timeArr = ref<string[]>([])
watch(timeArr,(val)=>{
  if(val){
    rentForm.value.startTime = val[0]
    rentForm.value.endTime = val[1]
  }else{
    rentForm.value.startTime = ''
    rentForm.value.endTime = ''
  }
},{deep:true})
// 通过 disabledDate 函数，来设置禁用掉的日期。
const disabledDate = (time: Date) => {
  // 禁用今天之前的日期,包含今天 （ 1000 * 60 * 60 * 24 -> 1天的毫秒数 ）
  return time.getTime() < Date.now() -1000 * 60 * 60 * 24
};

const addFormRef = ref<FormInstance>()
//上传合同文件
const onUploadRequest = async(options: UploadRequestOptions) => {
  // 1. 准备 FormData 对象
  const fd = new FormData()
  fd.append('file', options.file)//文件对象
  fd.append('type','contract')// 上传类型，1、企业营业执照 businessLicense 2、租赁合同附件 contract
  // 2. 发送请求，上传文件
  const res = await uploadAPI(fd)
  // 3. 保存合同附件 url 和 id，用于添加合同
  rentForm.value.contractUrl = res.data.url
  rentForm.value.contractId = res.data.id
  // 4. 主动触发校验(如果校验通过，会清除错误信息)
  addFormRef.value?.validateField('contractId')
   // 5. return 后端返回的数据，保存到 response 中
  return res.data
}

//删除合同
const removeUpload = () =>{
   // 清空数据
  rentForm.value.contractUrl = ''
  rentForm.value.contractId = undefined
  // 触发校验
  addFormRef.value?.validateField('contractId')
}


const beforeUpload = (rawFile:UploadRawFile)=>{
  const allowSize = 5*1024*1024
  if(rawFile.size > allowSize){
    ElMessage.error('文件大小不能超过5M')
    return false
  }
  return true
}


//展开行时触发
const onExpandChange = async (row: EnterpriseWithRent) => {
  // 获取企业的合同列表
  const res = await getRentListAPI(row.id)
  console.log('当前行被展开', res)
  // 把请求回来的数据，直接保存到当前行的企业信息中
  row.rentList = res.data
}

//退租
const outRent = (row:Datum) => {
    ElMessageBox.confirm('确认退租吗?', '提示', {
      confirmButtonText: '确定',
      cancelButtonText: '取消',
      type: 'warning'
    }).then(async () => {
      // 1. 调用接口
      await outRentAPI(row.id)
      row.status = 3
      // 2. 更新状态
      ElMessage.success('退租成功!')
    }).catch(() => {
      // 点击取消，什么也不做
    })
  }


// 删除合同（合同Row, 企业Row）
const deleteRent = async (rentRow: Datum, enterPriseRow: EnterpriseWithRent) => {
  ElMessageBox.confirm('是否确认删除当前合同?', '温馨提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async () => {
    // 发送请求，更新后端合同状态(后端)
    await deleteRentAPI(rentRow.id)
    // 删除过滤掉合同（前端）
    enterPriseRow.rentList = enterPriseRow.rentList.filter(item => item.id !== rentRow.id)
    // 轻提示
    ElMessage.success('删除成功')
  }).catch(() => {
    // 点击取消，什么也不做
  })
}

</script>



<template>
  <div class="building-container">
    <!-- 搜索区域 -->
    <div class="search-container">
      <div class="search-label">企业名称：</div>
      <el-input v-model="params.name"  clearable placeholder="请输入内容" class="search-main" />
      <el-button @click="onSearch" type="primary">查询</el-button>
    </div>
    <div class="create-container" >
      <!-- 企业管理添加企业-路由跳转 -->
      <el-button  @click="$router.push('/exterpriseAdd')"  type="primary">添加企业</el-button>
    </div>
    <!-- 表格区域 -->
    <div class="table">
      <el-table style="width: 100%" :data="list"  @expand-change="onExpandChange" row-key="id">
        <el-table-column type="expand">
          <template #default="{ row }">
            <el-table :data="row.rentList">
              <el-table-column label="租赁楼宇" width="320" prop="buildingName" />
              <el-table-column label="租赁起始时间" prop="startTime" />
              <el-table-column label="合同状态" prop="status">
                <!-- 合同的租赁状态 0待生效 1生效中 2已到期 3已退租 -->
                <template v-slot="{ row }">
                  <el-tag v-if="row.status === 0" type="warning">待生效</el-tag>
                  <el-tag v-else-if="row.status === 1" type="success">生效中</el-tag>
                  <el-tag v-else-if="row.status === 2" type="info">已到期</el-tag>
                  <el-tag v-else-if="row.status === 3" type="danger">已退租</el-tag>
                </template>
              </el-table-column>


              <el-table-column  label="操作" width="250">
                <!-- 表格嵌套 row 命名冲突，按 F2 批量安全重命名 -->
                <template v-slot="{ row: rentRow }">
                  <el-button size="small" type="primary"link>续租</el-button>
                  <el-button size="small" @click="outRent(rentRow)" type="primary"link :disabled="rentRow.status === 3">退租</el-button>
                  <el-button size="small" @click="deleteRent(rentRow, row)" type="primary"link :disabled="rentRow.status !== 3">删除</el-button>
                </template>
              </el-table-column>
            </el-table>
          </template>
        </el-table-column>

        <el-table-column type="index" label="序号" width="120" />
        <el-table-column prop="name" label="企业名称" width="320" />
        <el-table-column prop="contact" label="联系人" />
        <el-table-column prop="contactNumber" label="联系电话" />
        <el-table-column  label="操作" width="300">
          <template v-slot="{ row }">
            <el-button size="small" type="primary"link @click="addRent(row.id)">添加合同</el-button>
            <el-button size="small" type="primary"link @click="$router.push(`/exterpriseDetail/${row.id}`)">查看</el-button>
            <el-button size="small" type="primary"link @click="$router.push(`/exterpriseAdd/${row.id}`)" >编辑</el-button>
            <el-button size="small" type="primary"link @click="delEnter(row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <div class="page-container">
      <el-pagination 
      :total="total" 
      layout="total,sizes, prev, pager, next, jumper" 
      :page-sizes="[2, 4, 6, 8, 10]"
      v-model:page-size="params.pageSize"
      v-model:current-page="params.page"
      @change="getList()"
      />
        <!-- 渲染页码
        @change="getList()" -->
    </div>
    <el-dialog v-model="rentDialogVisible" width="580" title="添加合同" @close="closeRent">
      <!-- 表单模版 -->
      <div class="form-container">
        <el-form ref="addFormRef" :model="rentForm" :rules="rentRules" label-position="top">
          <el-form-item label="租赁楼宇" prop="buildingId">
            <el-select v-model="rentForm.buildingId" placeholder="请选择" clearable>
              <el-option v-for="item in buildList" :key="item.id" :label="item.name" :value="item.id" />
            </el-select>
          </el-form-item>
          <el-form-item label="租赁起止日期" prop="endTime">
            <el-date-picker
              v-model="timeArr" 
              type="daterange" 
              range-separator="至" 
              start-placeholder="开始日期"
              end-placeholder="结束日期" 
              value-format="YYYY-MM-DD" 
              :disabled-date="disabledDate"
              />
          </el-form-item>
          <el-form-item label="租赁合同" prop="contractId">
            <el-upload v-model:file-list="fileList" accept=".doc, .pdf"  :http-request="onUploadRequest" @remove="removeUpload"
            :before-upload="beforeUpload"
            >
              <el-button size="small" type="primary" plain>上传合同文件</el-button>
              <template #tip>
                <div class="el-upload__tip">支持扩展名：.doc .pdf, 文件大小不超过5M</div>
              </template>
            </el-upload>
          </el-form-item> 
        </el-form>
      </div>
      {{ rentForm }}
        {{ timeArr }}
      <template #footer>

            <el-button @click="closeRent">取 消</el-button>
            <el-button  type="primary" @click="addRentConfirm" >确 定</el-button>
          
        </template>
      </el-dialog>
  </div>
</template>

<style lang="scss" scoped>
.building-container {
  padding: 20px;
}

.search-container {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgb(237, 237, 237, .9);
  ;
  padding-bottom: 20px;

  .search-label {
    width: 100px;
  }

  .search-main {
    width: 220px;
    margin-right: 10px;
  }
}

.create-container {
  margin: 10px 0px;
}

.page-container {
  padding: 4px 0px;
  text-align: right;
  display: flex;
  justify-content: flex-end;
}

.form-container {
  padding: 0px 80px;
}
</style>